Boat-salvaging device



July 1,.'1930. L, F, LQNG BOAT SALVGING DEVICE Filed April 17, 1928 \w wIIIIIIUFIHHHIIHHWIIIU A y M au l1.. IIN H1! H H Il llllyllllllllllllldmmv.

ATTORNEY Patented July 1, 1930 l UNITED STATES vPpxrEN'i omer.

LOUIS F. LONG, OF ST. LOUIS, MSSO'URI BOAT-SALVAGING DEVICE Applicationfiled April 17, 1928. Serial No. 270,760.

This invention relates to salvaging apsisting metal, of a size andthickness conparatus for use in raising ,sunken vessels and forming tothe size of the boat in connecboats of all characters. tion with whichthey are to be used. These It is well known that when vessels and bandspass under and around the boat at boats of various kinds sink and settlein mud longitudinally spaced intervals and are 55 or sand at the bottomof the water, it is sunken iiush with the boat as is showncleargenerally difficult and often impossible to ly in Fig. l,terminating at their ends on a pass a cable beneath the bottom of theboat level with the deck, and provided in said to which'it is customaryto apply hoisting ends with up-standing eye-bolts 4 with tackle.Ordinary arrangements provided which the hoisting tackle may be readily60 for lifting such vessels without passing a connected. The building inof these sal cable under them are liable to pull out and vage bands asapart of the boat avoids all defeat the object. necessity of dredging inmud and water A primary object of this invention is to under the boat toget chains under itto provide simple yet eificientmeans carried alraiseit and also saves valuable time which is 65 ways by the boat and whichare built in as an important factor in the case of a suba part of theboat, and which, while passing marine in which the crew is imprisoned.under and around the boat are accessible With this form of salvagingapparatus, all from the top of the deck, thereby dispensing that isnecessary is for access to the top of with all the useless labor ofdredging in the the deck to be accomplished and then chains y70 mudunder the boat in order to get chains or or cables may be secured to theeye-bolts l cables under it to raise it, as well as the conand any poweravailable applied for rais* sumption of time necessary to such a perlngthe boat. A formance, To further assist in raising the boat, air Y '25Another object of the invention is to propipes are provided, oneextending into vide simple and eflicient means for forcing each aircompartment of the boat and proair into the various air compartments ofthe JeCtlIlg at their upper ends above the deck boat to facilitate theraising thereof, 2 and there equipped with suitable valved In carryingout these objects, the invencOnnections whereby an air supply hose maytion is susceptible 0f a Wide range of modibe quickly. attached theretoso that air may so fication without departing from the spirit be forcedinto the compartments, which lator sacrificing any of the advantages ofthe ter are provided in nearly yevery form of vesclaimed invention therebeing shown inthe sel, and this air, of course, renders the boatdrawings for illustrative purposes a premore buoyant and more readilyraised.

ferred and practical form in which; `It is, ofcourse, to be understoodthat any Figure l is a perspective view 0f a boat suitable air supplymeans ymay be provided equipped with this improved apparatus; forforcing air into the compartments, such Fig. 2 is a side elevationthereof, and Y as air compression pumps.

Fig. 3 is a detail perspective view of one` l/Vithout furtherkdescription it is thought of the boat encircling bands constituting athat the features and'advantages of the inpari; of the invention ventionwill be readily apparent to those In the embodiment illustrated, a boat1 skilled in the art, and it will of course be is shown of the closedsubmarine type, havunderstood thatv changes in the form, proing theusual deck 2. portion and minor details of construction This boat isprovided with a plurality of may be resorted to, without departing from95 what we will call salvage bands 3, any dethe spirit of the inventionor its scope as sired number of which may be employed, claimed.according to the size of the boat in con- I claim nection with whichthey are used. These YThe combination with the hull of a vesbands 3 arecomposed of suitable strain resel, of a plurality of salvage bandssecured t0 the exterior of said hull and sunken flush with saidexterior, said bands passing transversely around the bottom of the hulland having their ends terminating flush With the deck thereof, saidbands being provided at their ends with means for the attachment ofhoistingy tackle, said means projecting above the deck level tofacilitate engagei nient with the hoistingV tackle.

LOUIS F. LONG.

